Potassium Yttrium Tungstate Crystal

Data sheet

Density	6.61 g/cm³
Materials	KYW Crystal
Molecular Formula	KY(WO4)2

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Potassium Yttrium Tungstate (KYW) Crystal is a high-performance optical material with strong phonon modes at 765 cm⁻¹ and 905 cm⁻¹, providing efficient Raman gain that depends on pump polarization. It offers excellent mechanical strength, a high optical damage threshold, and a broad transparency range from 350 nm to 5.5 µm. Additionally, its thermal conductivity is approximately three times that of barium nitrate, making it effective for high-performance laser applications. Heeger Materials provides high-quality Potassium Yttrium Tungstate (KYW) Crystal, ensuring reliable performance for advanced optical systems

Potassium Yttrium Tungstate Crystal | KYW Crystal

KYW Crystal Properties

Chemical Formula	KY(WO4)2
Crystal Structure	Monoclinic, C2/c
Lattice Parameters	a = 10.64 Å, b = 10.32 Å, c = 7.55 Å
Density	6.61 g/cm³
Mohs Hardness	4-5
Transparency Range	0.35-5.5 μm
Refractive Indices (1064 nm, room temperature)	np = 1.9688, nm = 2.0065, ng = 2.0507
Thermal Conductivity (average value)	3.3 Wm⁻¹K⁻¹
dn/dT	dnp/dT = 14.6 × 10⁻⁶ K⁻¹ dnm/dT = 8.9 × 10⁻⁶ K⁻¹ dng/dT = 12.4 × 10⁻⁶ K⁻¹
Raman Frequency Shift (T = 300 K)	905 cm⁻¹ (ENm) 765 cm⁻¹ (ENm)
Raman Gain (1064 nm pump, steady-state regime)	3.6 cm/GW

KYW Crystal Specifications

Crystal Orientation	b-cut
Optical Aperture	>90%
Surface Dimension Tolerances	+0.0/-0.1 mm
Length Tolerance	±0.1 mm
Parallelism Error	<20 arcsec
Perpendicularity Error	<10 arcmin
Protective Bevel	<0.1 mm at 45˚
Surface Quality	10-5 S-D
Wavefront Distortion	<λ/4 @ 632.8 nm
Surface Flatness	<λ/8 @ 632.8 nm
Coating	AR (R<0.7%) @ 500-650 nm
Laser Damage Threshold	>10 J/cm² @ 1064 nm, 10 ns

KYW Crystal Stock Dimensions

Face Dimensions	Length	Coating
5x5 mm	15 mm	Uncoated
5x5 mm	30 mm	Uncoated
5x5 mm	45 mm	Uncoated
5x5 mm	15 mm	AR/AR @ 450-800 nm
5x5 mm	30 mm	AR/AR @ 450-800 nm
5x5 mm	45 mm

KYW Crystal Key Features

Transparency ranges from 300 nm to 5.5 μm
Two significant Raman shifts at 765 cm⁻¹ and 905 cm⁻¹

KYW Crystal Applications

Raman Lasers: Utilized in Raman laser systems due to its strong phonon modes and efficient Raman gain.
Laser Radiation Frequency Tuning: Enables precise frequency tuning for various laser applications.
Nonlinear Optics: Supports frequency conversion processes such as second-harmonic generation (SHG) and optical parametric oscillation (OPO).
High-Power Laser Systems: Suitable for high-power laser applications due to its high optical damage threshold and thermal conductivity.
Spectroscopy and Sensing: Used in advanced spectroscopic techniques and sensing applications requiring stable and efficient laser sources.

KYW Crystal Packing And Shipping

Potassium Yttrium Tungstate (KYW) Crystal will be securely packaged in sturdy containers with cushioning materials to prevent movement or damage during shipping. This careful packaging ensures that the product arrives in perfect condition, maintaining its high-quality standards throughout the delivery process.

Where to Buy Potassium Yttrium Tungstate (KYW) Crystal in Bulk?

Heeger Materials Inc., a professional supplier and manufacturer of high-quality Laser Crystals products including Potassium Yttrium Tungstate (KYW) Crystal, leverages extensive expertise in supply and export to offer competitive prices. We provide customized solutions to meet specific requirements, ensuring exceptional quality and customer satisfaction.

Heeger Materials Inc. was established in 2016 in Colorado, USA. We specialize in premium-grade metals, alloys, ceramics, powders, and other materials catering to research, development, and large-scale industrial production in scientific and industrial sectors.

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